#!/bin/sh

SET_TERM_TEMPLATE='set term push; set term x11 enhanced; set term wxt enhanced; set term pop'

DELAY_BOUND="[]"

while getopts d:enso:pP opt
do
    case $opt in
	d) DELAY_BOUND="[0:$OPTARG]";;
	e) SET_TERM_TEMPLATE='set term postscript color eps enhanced; set output "${FILE}.eps"';;
	n) SET_TERM_TEMPLATE='set term png enhanced; set output "${FILE}.png"';;
	s) SET_TERM_TEMPLATE='set term svg enhanced; set output "${FILE}.svg"';;
	o) MULTIPDF_FILENAME=$OPTARG;;
	p)
	    SET_TERM_TEMPLATE='set term postscript color landscape enhanced'
	    PDF_OUTPUT=1
	    ;;
	P)
	    SET_TERM_TEMPLATE='set term postscript color landscape enhanced'
	    MULTIPLE_GRAPHS_IN_PDF=1
	    GNUPLOT_CMD_FILE=plot_commands.$$
	    rm -f ${GNUPLOT_CMD_FILE}
	    ;;
    esac
done

shift $(($OPTIND - 1))

[ $# -eq 0 -a -r delay_stats.dat ] && set delay_stats.dat


while [ $# -gt 0 ];
do
    FILE=`basename "$1" .dat`
    shift

    COMMAND="Results of: $(grep 'Invoked as' ${FILE}.dat|grep -o 'wclient.*'|sed -e 's/ -o [^ ]*//' -e 's/ [^ ]* ?$//')"
    STREAMS="$(grep '^#' ${FILE}.dat|sed -ne '2,$ s/^# //p'|while read LINE; do echo {/*0.7 $LINE}\\n; done|tr -d '\n'|sed -e 's/_/\\\\_/g')"

    TITLE="${COMMAND}\n\n${STREAMS}"

    SET_TERM=$(echo $SET_TERM_TEMPLATE|sed -e s/\${FILE}/$FILE/)
    if [ -n "$MULTIPLE_GRAPHS_IN_PDF" ]; then
	CMD="cat >>$GNUPLOT_CMD_FILE"
    elif [ -n "$PDF_OUTPUT" ]; then
	CMD="cat | gnuplot | ps2pdf - ${FILE}.pdf"
    else 
	CMD="cat | gnuplot -persist"
    fi
    eval $CMD <<EOF
${SET_TERM}
set xlabel "Response-Time [ms]"
set ylabel "Cumulative % of packets"
set title "${TITLE}"
set key right bottom nobox
set style data linespoints
#set logscale x
set grid
plot $DELAY_BOUND \
     "${FILE}.dat" index 0 title "AC\\\\_VO",\
     "${FILE}.dat" index 1 title "AC\\\\_VI",\
     "${FILE}.dat" index 2 title "AC\\\\_BE",\
     "${FILE}.dat" index 3 title "AC\\\\_BK"
EOF
done

if [ -n "$MULTIPLE_GRAPHS_IN_PDF" ]; then
    gnuplot $GNUPLOT_CMD_FILE|ps2pdf - $MULTIPDF_FILENAME
    rm -f $GNUPLOT_CMD_FILE
fi